/Engine/Source/Runtime/SlateCore/Public/Rendering/DrawElementTypes.h
void SetGradient ( [TArray](API\Runtime\Core\Containers\TArray)< [FSlateGradientStop](API\Runtime\SlateCore\Rendering\FSlateGradientStop) > InGradientStops, EOrientation InGradientType, FVector4f InCornerRadius )